Use of multipoint connection services to establish call-tapping
Use of synchronized clocks to provide input and output time...
User controlled audio quality for voice-over-IP telephony...
User datagram protocol traceroute probe extension
User fee charging system in which traffic is determined...
User selectable overlap and enbloc dialing of ISDN line
User selectable overlap and enbloc dialing of ISDN line
User semantic overlay for troubleshooting convergent network...
User-configurable frame relay network
Using TCP/IP offload to accelerate packet filtering
Using TCP/IP offload to accelerate packet filtering
Using web page hit statistics to anticipate call center traffic
Utility based filtering mechanism for PMTU probing
Utilizing multiple distortion measures
Validation of call processing network performance
Vectorized software packet forwarding
Vehicle communications transceiver with loop-back diagnostic mod
Vehicle multiplex communication system
Verification of active nodes in an open network
Verification of connections between devices in a network